📞☎️ Telecommunications Basic Acronyms #2

Here are a couple of acronyms you may hear in the telecommunications industry;

CDR: Call Detail Record
MOC: Mobile Originating Call
MTC: Mobile Terminating Call
IRSF: International Revenue Share Fraud
HLR: Home Location Register
NRTRDE: Near RealTime Roaming Data Exchange
BTS: Base Transceiver Station
OCS: Online Charging System

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